NCT05765396

Brief Summary

The goal of this observational study is to evaluate new non-invasive passive surveillance technologies, Level 42 AI imPulse™ Una and TOR devices for the detection of COVID-19, Flu, and/or RSV in asymptomatic and symptomatic individuals over age of 18 undergoing COVID-19, Flu, and/or RSV screening and testing at BAMC Ft Sam Houston, TX; with and without COVID-19, Flu, and/or RSV. The hypotheses are: (H1) The imPulseTM Una and the imPulseTM TOR e-stethoscopes have at least a similar discriminative and detection ability among symptomatic and asymptomatic COVID-19 carrier versus those not infected compared to gold standard RT-PCR. We will operationalize and deploy both the imPulseTM Una and imPulseTM TOR e-stethoscope into DoD use-cases and compare their usability between the devices. (H2) Identify if the imPulseTM Una and the imPulseTM TOR e-stethoscopes have at least a similar discriminative and detection ability among symptomatic and asymptomatic Respiratory Syncytial Virus (RSV), Influenza and Long COVID carriers versus those not infected compared to gold standard Rapid RSV and Flu Antigen Tests, or RT-PCR and molecular assays. We will operationalize and deploy both the imPulseTM Una and imPulseTM TOR e-stethoscope into DoD use-cases and compare their captured traces in the early identification of disease/illness analyzed by the devices built in algorithms. (H3) In the mid to long-term, this approach will also be explored as a diagnostic system to explore pursue the physical (structural and mechanical) properties of cells and tissues that maintain normal cell behavior (motility, growth, apoptosis), and the critical importance of the ability of cells to sense and respond to mechanical stresses, which will be operationally critical for assessment of both traumatic and unconventional exposures in austere environments. Participants will:

  • Be consented;
  • Be screened for COVID-19, Flu, and/or RSV symptoms according to BAMC's current screening procedures;
  • Have study data collected;
  • Complete a symptoms questionnaire;
  • imPulseTM Una and TOR e-stethoscopes examination will be conducted;
  • Participants will be compensated for completing all study requirements. (Active-Duty personnel must complete the study procedures while off-duty in order to receive compensation.)

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
300

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 9, 2023

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 13, 2023

Completed
2 months until next milestone

Study Start

First participant enrolled

May 15, 2023

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 30, 2026

Completed
Last Updated

December 10, 2025

Status Verified

August 1, 2025

Enrollment Period

2.6 years

First QC Date

March 9, 2023

Last Update Submit

December 3, 2025

Conditions

Keywords

COVID-19 diagnostic product, e-stethoscope, military, Flu, RSV, Passive Detection, Level 42

Outcome Measures

Primary Outcomes (4)

  • Digital vibroacoustic biomarker diagnostic performance characteristics specific to imPulse™ Una

    Sensitivity, specificity, positive and negative predictive values - of the imPulse™ Una device for point-of-care diagnosis of COVID-19 among symptomatic and asymptomatic COVID-19 carrier versus those not infected compared to gold standard RT-PCR.

    Enrollment through to study completion (min 48hrs through to 24 months)

  • imPulse™ Una infrasound-to-ultrasound e-stethoscope device usability

    Critical importance of the ability to sense and respond to mechanical stresses, which will be operationally critical for assessment of both traumatic and unconventional exposures in austere environments

    Enrollment through to study completion (min 48hrs through to 24 months)

  • imPulse™ TOR infrasound-to-ultrasound e-stethoscope device usability

    Critical importance of the ability to sense and respond to mechanical stresses, which will be operationally critical for assessment of both traumatic and unconventional exposures in austere environments

    Enrollment through to study completion (min 48hrs through to 24 months)

  • Digital vibroacoustic biomarker diagnostic performance characteristics specific to imPulse™ TOR

    Sensitivity, specificity, positive and negative predictive values - of the imPulse™ TOR device for point-of-care diagnosis of COVID-19, Flu, and/or RSV among symptomatic and asymptomatic COVID-19, Flu, and/or RSV carrier versus those not infected compared to gold standard RT-PCR.

    Enrollment through to study completion (min 48hrs through to 24 months)

Study Arms (2)

COVID-19, Flu, and/or RSV positive patients

Participants screened with known COVID-19, Flu, and/or RSV positive test results obtained within 48hrs of recruitment.

Device: imPulse™ Systems (Una and TOR) infrasound-to-ultrasound e-stethoscope

COVID-19, Flu, and/or RSV negative patients

Participants screened with known COVID-19, Flu, and/or RSV negative test results obtained within 48hrs of recruitment.

Device: imPulse™ Systems (Una and TOR) infrasound-to-ultrasound e-stethoscope

Interventions

The imPulse™ Systems are an every/anywhere-point-of-care cardiopulmonary functional state assessment platform designed to capture normal and abnormal, audible and inaudible cardiopulmonary sounds, rhythms and patterns, via a real-time, intelligent, full-spectrum phonocardiogram obtained from direct to skin coupling or through a layer of clothing.

Also known as: imPulse™ Una, e-stethoscope, Passive Detection, imPulse™ TOR
COVID-19, Flu, and/or RSV negative patientsCOVID-19, Flu, and/or RSV positive patients

Eligibility Criteria

Age18 Years - 89 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Asymptomatic and symptomatic individuals age 18 and older undergoing COVID-19, Flu, and/or RSV screening and testing at Brooke Army Medical Center (BAMC), Ft Sam Houston TX, with and without COVID-19, Flu, and/or RSV diagnosis within 48hrs of consent.

You may qualify if:

  • Asymptomatic and symptomatic individuals 18 years and older
  • Receiving standard COVID-19, Flu, and/or RSV screening and testing at BAMC
  • Do not have to be diagnosed with SARS-CoV-19 (COVID-19), Flu, and/or RSV but only be screened
  • English Speaking

You may not qualify if:

  • Any individual under age of 18
  • Anyone unable to comply (or be assisted) with study procedures
  • Anyone not able to provide temperature thermal scan, and/or 3-minute vibroacoustic scan

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brooke Army Medical Center

Fort Sam Houston, Texas, 78234, United States

Location

Related Publications (5)

  • Clemmons NS, McCormic ZD, Gaydos JC, Hawksworth AW, Jordan NN. Acute Respiratory Disease in US Army Trainees 3 Years after Reintroduction of Adenovirus Vaccine 1. Emerg Infect Dis. 2017 Jan;23(1):95-98. doi: 10.3201/eid2301.161297. Epub 2017 Jan 15.

    PMID: 27748651BACKGROUND
  • Sanchez JL, Cooper MJ, Myers CA, Cummings JF, Vest KG, Russell KL, Sanchez JL, Hiser MJ, Gaydos CA. Respiratory Infections in the U.S. Military: Recent Experience and Control. Clin Microbiol Rev. 2015 Jul;28(3):743-800. doi: 10.1128/CMR.00039-14.

    PMID: 26085551BACKGROUND
  • Armed Forces Health Surveillance Center (AFHSC). Surveillance Snapshot: illness and injury burdens among U.S. military recruit trainees, 2012. MSMR. 2013 Apr;20(4):24. No abstract available.

    PMID: 23617314BACKGROUND
  • Murray CJ, Lopez AD. Measuring the global burden of disease. N Engl J Med. 2013 Aug 1;369(5):448-57. doi: 10.1056/NEJMra1201534. No abstract available.

    PMID: 23902484BACKGROUND
  • Alahi MEE, Mukhopadhyay SC. Detection Methodologies for Pathogen and Toxins: A Review. Sensors (Basel). 2017 Aug 16;17(8):1885. doi: 10.3390/s17081885.

    PMID: 28813028BACKGROUND

MeSH Terms

Conditions

COVID-19Coronavirus InfectionsInfluenza, HumanRespiratory Syncytial Virus Infections

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract DiseasesOrthomyxoviridae InfectionsPneumovirus InfectionsParamyxoviridae InfectionsMononegavirales Infections

Study Officials

  • Tony T Yuan, PhD

    Uniformed Services University of the Health Sciences (USUHS)

    PRINCIPAL INVESTIGATOR
  • Michael Morris, MD

    Brooke Army Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 9, 2023

First Posted

March 13, 2023

Study Start

May 15, 2023

Primary Completion

December 30, 2025

Study Completion

March 30, 2026

Last Updated

December 10, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations